Finding the Fourth Proportional to 172,947.84, 238,668.12 and 93,459.84
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Solution
The fourth proportional to 172,947.84, 238,668.12 and 93,459.84 is: 128,974.63
Step by Step Solution
- Step 1: Write the proportion equation
172,947.84 : 238,668.12 = 93,459.84 : x - Step 2: Convert to fraction form
172,947.84/238,668.12 = 93,459.84/x - Step 3: Cross multiply
172,947.84x = 238,668.12 × 93,459.84 - Step 4: Simplify right side
172,947.84x = 22,305,884,308.30 - Step 5: Solve for x
x = 22,305,884,308.30/172,947.84 - Step 6: Final answer
x = 128,974.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.